30,000+ Happy Customers
This product is sold by the case. There are 500 units in every case.
Introducing Sac O2 Premium Zipper Filter Growing Bags, co-developed by European market leaders Sac O2 and Mycelia. These bags are rigorously designed to offer unparalleled resistance to contamination—boasting the highest contamination resistance rating in the market.
Operating on principles similar to HEPA filtration technology, these filters are composed of hydrophobic fibres arranged in a randomised pattern. This design ensures the effective trapping of microorganisms. In addition, the air is directed through an extended filtration path, elevating its efficacy as a high-performance filter.
Learn More About Zipper Filters
This specific model comes with a bottom gusset, allowing this bag to free stand for easy use.
Constructed from high-grade polypropylene, our mushroom growing bags are impressively resilient and tough. Whether you're a hobbyist or a commercial producer, these bags are the ultimate choice for reliability and performance.
Delivery & Returns
Delivery
Note: Please refer to the specific lead times shown on product pages for more accurate delivery times.
- Small Orders (E.g. 100ml Spawn, Plugs): Sent via Royal Mail large letters.
- Medium-Sized Orders (under 2kg): Royal Mail 24-48 hour tracked parcel.
- Large Orders (2kg+): via DPD Express or APC.
This does not apply to our Gift E-Cards, which are delivered via email.
If you'd like your parcel left in a safe place, this needs to be arranged directly through the courier's website or delivery notification.
To enable this function you must leave a valid email address. Once your order is on its way, you should receive a notification from the courier with a link to manage your delivery. Simply follow that link to choose a safe place or make any other delivery preferences.
Unfortunately, we’re unable to set a safe place on your behalf.
Extended Delivery Areas
Certain UK postcodes may require 2–5 business days for delivery.
While we are able to ship to these locations, we cannot accept responsibility for the condition of products upon arrival due to the extended transit time. By placing an order with a delivery timeframe of 2–5 business days, the customer acknowledges and accepts this risk.
If your postcode falls within an extended delivery area, you will be notified at checkout before completing your order.
Returns
Due to the perishable nature of spawn we are unable to accept cancellations of orders or returns of product.
- If your mushroom spawn arrives damaged, defective, or not as described, please contact us at hello@urban-farm-it.com within 24 hours of receiving the item. You will be eligible for a replacement or refund if we are notified within this timeframe, along with supporting documentation such as photos of the item and packaging.
- Refunds or replacements will not be issued for reports received beyond the 24-hour window, as the quality of perishable items can degrade rapidly.
See our returns policy here.